package com.lele.config;

import com.baomidou.mybatisplus.core.conditions.update.UpdateWrapper;
import com.lele.constant.MailContant;
import com.lele.pojo.MailLog;
import com.lele.service.IMailLogService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.amqp.core.Binding;
import org.springframework.amqp.core.BindingBuilder;
import org.springframework.amqp.core.DirectExchange;
import org.springframework.amqp.core.Queue;
import org.springframework.amqp.rabbit.connection.CachingConnectionFactory;
import org.springframework.amqp.rabbit.core.RabbitTemplate;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

import javax.annotation.Resource;

@Configuration
@Slf4j
public class RabbitMQConfig {
    @Resource
    private CachingConnectionFactory cachingConnectionFactory;
    @Autowired
    private IMailLogService mailLogService;

    @Bean
    public RabbitTemplate rabbitTemplate(){
        RabbitTemplate rabbitTemplate = new RabbitTemplate(cachingConnectionFactory);
        /**
         * 消息确认回调,确认消息是否到达broker
         * data:消息唯一标识
         * ack：确认结果
         * cause：失败原因
         */
        rabbitTemplate.setConfirmCallback((data,ack,cause)->{
            String msgId = data.getId();
            System.out.println("RabbitMQConfig: msgId = " + msgId);
            if (ack){
                log.info("{}==========>消息发送成功",msgId);
                mailLogService.update(new UpdateWrapper<MailLog>().set("status",1).eq("msgId",msgId));
            }else {
                log.info("{}==========>消息发送失败",msgId);
            }
        });
        /**
         * 消息失败回调，比如router不到queue时回调
         * msg:消息主题
         * repCode:响应码
         * repText:响应描述* exchange:交换机
         * * routingKey:路由键
         * */
        rabbitTemplate.setReturnCallback((msg,repCode,repText,exchange,routingKey)->{
            log.info("{}=======================>消息发送到queue时失败",msg.getBody());
        });
        return rabbitTemplate;
    }

    @Bean
    public Queue queue() {
        return new Queue(MailContant.MAIL_QUEUE, true);
    }

    @Bean
    public DirectExchange directExchange() {
        return new DirectExchange(MailContant.MAIL_EXCHANGE);
    }

    @Bean
    public Binding binding(){
        return BindingBuilder.bind(queue()).to(directExchange()).with(MailContant.MAIL_ROUTER);
    }
}